From 3cacedbbac5b2ab651fddcad1d5ce2acd1979b93 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Fri, 27 Oct 2023 18:25:35 +0200 Subject: aarch64: Remove duplicated optimized memmove() The optimized aarch64/memcpy.S already provides a memmove() implementation. --- newlib/Makefile.in | 42 ++------ newlib/libc/machine/aarch64/Makefile.inc | 3 +- newlib/libc/machine/aarch64/memmove-stub.c | 31 ------ newlib/libc/machine/aarch64/memmove.S | 155 ----------------------------- newlib/libc/machine/aarch64/memmove.c | 31 ++++++ 5 files changed, 43 insertions(+), 219 deletions(-) delete mode 100644 newlib/libc/machine/aarch64/memmove-stub.c delete mode 100644 newlib/libc/machine/aarch64/memmove.S create mode 100644 newlib/libc/machine/aarch64/memmove.c (limited to 'newlib') diff --git a/newlib/Makefile.in b/newlib/Makefile.in index 644e595c9..9cbb4254e 100644 --- a/newlib/Makefile.in +++ b/newlib/Makefile.in @@ -602,8 +602,7 @@ check_PROGRAMS = @HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memcmp.S \ @HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memcpy-stub.c \ @HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memcpy.S \ -@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memmove-stub.c \ -@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memmove.S \ +@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memmove.c \ @HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memrchr-stub.c \ @HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memrchr.S \ @HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memset-stub.c \ @@ -1864,7 +1863,6 @@ am__objects_51 = libc/ssp/libc_a-chk_fail.$(OBJEXT) \ @HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memcmp.$(OBJEXT) \ @HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memcpy-stub.$(OBJEXT) \ @HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memcpy.$(OBJEXT) \ -@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memmove-stub.$(OBJEXT) \ @HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memmove.$(OBJEXT) \ @HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memrchr-stub.$(OBJEXT) \ @HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memrchr.$(OBJEXT) \ @@ -8058,9 +8056,6 @@ libc/machine/aarch64/libc_a-memcpy-stub.$(OBJEXT): \ libc/machine/aarch64/libc_a-memcpy.$(OBJEXT): \ libc/machine/aarch64/$(am__dirstamp) \ libc/machine/aarch64/$(DEPDIR)/$(am__dirstamp) -libc/machine/aarch64/libc_a-memmove-stub.$(OBJEXT): \ - libc/machine/aarch64/$(am__dirstamp) \ - libc/machine/aarch64/$(DEPDIR)/$(am__dirstamp) libc/machine/aarch64/libc_a-memmove.$(OBJEXT): \ libc/machine/aarch64/$(am__dirstamp) \ libc/machine/aarch64/$(DEPDIR)/$(am__dirstamp) @@ -12774,7 +12769,6 @@ distclean-compile: @AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memcmp.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memcpy-stub.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memcpy.Po@am__quote@ -@AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memrchr-stub.Po@am__quote@ @AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memrchr.Po@am__quote@ @@ -16754,20 +16748,6 @@ libc/machine/aarch64/libc_a-memcpy.obj: libc/machine/aarch64/memcpy.S @AMDEP_TRUE@@am__fastdepCCAS_FALSE@ DEPDIR=$(DEPDIR) $(CCASDEPMODE) $(depcomp) @AMDEPBACKSLASH@ @am__fastdepCCAS_FALSE@ $(AM_V_CPPAS@am__nodep@)$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CCASFLAGS) $(CCASFLAGS) -c -o libc/machine/aarch64/libc_a-memcpy.obj `if test -f 'libc/machine/aarch64/memcpy.S'; then $(CYGPATH_W) 'libc/machine/aarch64/memcpy.S'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memcpy.S'; fi` -libc/machine/aarch64/libc_a-memmove.o: libc/machine/aarch64/memmove.S -@am__fastdepCCAS_TRUE@ $(AM_V_CPPAS)$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CCASFLAGS) $(CCASFLAGS) -MT libc/machine/aarch64/libc_a-memmove.o -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo -c -o libc/machine/aarch64/libc_a-memmove.o `test -f 'libc/machine/aarch64/memmove.S' || echo '$(srcdir)/'`libc/machine/aarch64/memmove.S -@am__fastdepCCAS_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Po -@AMDEP_TRUE@@am__fastdepCCAS_FALSE@ $(AM_V_CPPAS)source='libc/machine/aarch64/memmove.S' object='libc/machine/aarch64/libc_a-memmove.o' libtool=no @AMDEPBACKSLASH@ -@AMDEP_TRUE@@am__fastdepCCAS_FALSE@ DEPDIR=$(DEPDIR) $(CCASDEPMODE) $(depcomp) @AMDEPBACKSLASH@ -@am__fastdepCCAS_FALSE@ $(AM_V_CPPAS@am__nodep@)$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CCASFLAGS) $(CCASFLAGS) -c -o libc/machine/aarch64/libc_a-memmove.o `test -f 'libc/machine/aarch64/memmove.S' || echo '$(srcdir)/'`libc/machine/aarch64/memmove.S - -libc/machine/aarch64/libc_a-memmove.obj: libc/machine/aarch64/memmove.S -@am__fastdepCCAS_TRUE@ $(AM_V_CPPAS)$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CCASFLAGS) $(CCASFLAGS) -MT libc/machine/aarch64/libc_a-memmove.obj -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo -c -o libc/machine/aarch64/libc_a-memmove.obj `if test -f 'libc/machine/aarch64/memmove.S'; then $(CYGPATH_W) 'libc/machine/aarch64/memmove.S'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memmove.S'; fi` -@am__fastdepCCAS_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Po -@AMDEP_TRUE@@am__fastdepCCAS_FALSE@ $(AM_V_CPPAS)source='libc/machine/aarch64/memmove.S' object='libc/machine/aarch64/libc_a-memmove.obj' libtool=no @AMDEPBACKSLASH@ -@AMDEP_TRUE@@am__fastdepCCAS_FALSE@ DEPDIR=$(DEPDIR) $(CCASDEPMODE) $(depcomp) @AMDEPBACKSLASH@ -@am__fastdepCCAS_FALSE@ $(AM_V_CPPAS@am__nodep@)$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CCASFLAGS) $(CCASFLAGS) -c -o libc/machine/aarch64/libc_a-memmove.obj `if test -f 'libc/machine/aarch64/memmove.S'; then $(CYGPATH_W) 'libc/machine/aarch64/memmove.S'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memmove.S'; fi` - libc/machine/aarch64/libc_a-memrchr.o: libc/machine/aarch64/memrchr.S @am__fastdepCCAS_TRUE@ $(AM_V_CPPAS)$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CCASFLAGS) $(CCASFLAGS) -MT libc/machine/aarch64/libc_a-memrchr.o -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memrchr.Tpo -c -o libc/machine/aarch64/libc_a-memrchr.o `test -f 'libc/machine/aarch64/memrchr.S' || echo '$(srcdir)/'`libc/machine/aarch64/memrchr.S @am__fastdepCCAS_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memrchr.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memrchr.Po @@ -33164,19 +33144,19 @@ libc/machine/aarch64/libc_a-memcpy-stub.obj: libc/machine/aarch64/memcpy-stub.c @AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ @am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -c -o libc/machine/aarch64/libc_a-memcpy-stub.obj `if test -f 'libc/machine/aarch64/memcpy-stub.c'; then $(CYGPATH_W) 'libc/machine/aarch64/memcpy-stub.c'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memcpy-stub.c'; fi` -libc/machine/aarch64/libc_a-memmove-stub.o: libc/machine/aarch64/memmove-stub.c -@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -MT libc/machine/aarch64/libc_a-memmove-stub.o -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Tpo -c -o libc/machine/aarch64/libc_a-memmove-stub.o `test -f 'libc/machine/aarch64/memmove-stub.c' || echo '$(srcdir)/'`libc/machine/aarch64/memmove-stub.c -@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Po -@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='libc/machine/aarch64/memmove-stub.c' object='libc/machine/aarch64/libc_a-memmove-stub.o' libtool=no @AMDEPBACKSLASH@ +libc/machine/aarch64/libc_a-memmove.o: libc/machine/aarch64/memmove.c +@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -MT libc/machine/aarch64/libc_a-memmove.o -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo -c -o libc/machine/aarch64/libc_a-memmove.o `test -f 'libc/machine/aarch64/memmove.c' || echo '$(srcdir)/'`libc/machine/aarch64/memmove.c +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Po +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='libc/machine/aarch64/memmove.c' object='libc/machine/aarch64/libc_a-memmove.o' libtool=no @AMDEPBACKSLASH@ @AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ -@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -c -o libc/machine/aarch64/libc_a-memmove-stub.o `test -f 'libc/machine/aarch64/memmove-stub.c' || echo '$(srcdir)/'`libc/machine/aarch64/memmove-stub.c +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -c -o libc/machine/aarch64/libc_a-memmove.o `test -f 'libc/machine/aarch64/memmove.c' || echo '$(srcdir)/'`libc/machine/aarch64/memmove.c -libc/machine/aarch64/libc_a-memmove-stub.obj: libc/machine/aarch64/memmove-stub.c -@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -MT libc/machine/aarch64/libc_a-memmove-stub.obj -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Tpo -c -o libc/machine/aarch64/libc_a-memmove-stub.obj `if test -f 'libc/machine/aarch64/memmove-stub.c'; then $(CYGPATH_W) 'libc/machine/aarch64/memmove-stub.c'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memmove-stub.c'; fi` -@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Po -@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='libc/machine/aarch64/memmove-stub.c' object='libc/machine/aarch64/libc_a-memmove-stub.obj' libtool=no @AMDEPBACKSLASH@ +libc/machine/aarch64/libc_a-memmove.obj: libc/machine/aarch64/memmove.c +@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -MT libc/machine/aarch64/libc_a-memmove.obj -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo -c -o libc/machine/aarch64/libc_a-memmove.obj `if test -f 'libc/machine/aarch64/memmove.c'; then $(CYGPATH_W) 'libc/machine/aarch64/memmove.c'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memmove.c'; fi` +@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Po +@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='libc/machine/aarch64/memmove.c' object='libc/machine/aarch64/libc_a-memmove.obj' libtool=no @AMDEPBACKSLASH@ @AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@ -@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -c -o libc/machine/aarch64/libc_a-memmove-stub.obj `if test -f 'libc/machine/aarch64/memmove-stub.c'; then $(CYGPATH_W) 'libc/machine/aarch64/memmove-stub.c'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memmove-stub.c'; fi` +@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -c -o libc/machine/aarch64/libc_a-memmove.obj `if test -f 'libc/machine/aarch64/memmove.c'; then $(CYGPATH_W) 'libc/machine/aarch64/memmove.c'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memmove.c'; fi` libc/machine/aarch64/libc_a-memrchr-stub.o: libc/machine/aarch64/memrchr-stub.c @am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -MT libc/machine/aarch64/libc_a-memrchr-stub.o -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memrchr-stub.Tpo -c -o libc/machine/aarch64/libc_a-memrchr-stub.o `test -f 'libc/machine/aarch64/memrchr-stub.c' || echo '$(srcdir)/'`libc/machine/aarch64/memrchr-stub.c diff --git a/newlib/libc/machine/aarch64/Makefile.inc b/newlib/libc/machine/aarch64/Makefile.inc index c749b0d57..1068d88ce 100644 --- a/newlib/libc/machine/aarch64/Makefile.inc +++ b/newlib/libc/machine/aarch64/Makefile.inc @@ -5,8 +5,7 @@ libc_a_SOURCES += \ %D%/memcmp.S \ %D%/memcpy-stub.c \ %D%/memcpy.S \ - %D%/memmove-stub.c \ - %D%/memmove.S \ + %D%/memmove.c \ %D%/memrchr-stub.c \ %D%/memrchr.S \ %D%/memset-stub.c \ diff --git a/newlib/libc/machine/aarch64/memmove-stub.c b/newlib/libc/machine/aarch64/memmove-stub.c deleted file mode 100644 index 8fa4ab938..000000000 --- a/newlib/libc/machine/aarch64/memmove-stub.c +++ /dev/null @@ -1,31 +0,0 @@ -/* Copyright (c) 2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -# include "../../string/memmove.c" -#else -/* See memmove.S */ -#endif diff --git a/newlib/libc/machine/aarch64/memmove.S b/newlib/libc/machine/aarch64/memmove.S deleted file mode 100644 index 597a8c8e9..000000000 --- a/newlib/libc/machine/aarch64/memmove.S +++ /dev/null @@ -1,155 +0,0 @@ -/* Copyright (c) 2013, Linaro Limited - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the name of the Linaro nor the - names of its contributors may be used to endorse or promote products - derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - -/* - * Copyright (c) 2015 ARM Ltd - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the company may not be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/* Assumptions: - * - * ARMv8-a, AArch64, unaligned accesses - */ - -#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) -/* See memmove-stub.c */ -#else - - .macro def_fn f p2align=0 - .text - .p2align \p2align - .global \f - .type \f, %function -\f: - .endm - -/* Parameters and result. */ -#define dstin x0 -#define src x1 -#define count x2 -#define srcend x3 -#define dstend x4 -#define tmp1 x5 -#define A_l x6 -#define A_h x7 -#define B_l x8 -#define B_h x9 -#define C_l x10 -#define C_h x11 -#define D_l x12 -#define D_h x13 -#define E_l count -#define E_h tmp1 - -/* All memmoves up to 96 bytes are done by memcpy as it supports overlaps. - Larger backwards copies are also handled by memcpy. The only remaining - case is forward large copies. The destination is aligned, and an - unrolled loop processes 64 bytes per iteration. -*/ - -def_fn memmove, 6 - sub tmp1, dstin, src - cmp count, 96 - ccmp tmp1, count, 2, hi - b.hs memcpy - - cbz tmp1, 3f - add dstend, dstin, count - add srcend, src, count - - /* Align dstend to 16 byte alignment so that we don't cross cache line - boundaries on both loads and stores. There are at least 96 bytes - to copy, so copy 16 bytes unaligned and then align. The loop - copies 64 bytes per iteration and prefetches one iteration ahead. */ - - and tmp1, dstend, 15 - ldp D_l, D_h, [srcend, -16] - sub srcend, srcend, tmp1 - sub count, count, tmp1 - ldp A_l, A_h, [srcend, -16] - stp D_l, D_h, [dstend, -16] - ldp B_l, B_h, [srcend, -32] - ldp C_l, C_h, [srcend, -48] - ldp D_l, D_h, [srcend, -64]! - sub dstend, dstend, tmp1 - subs count, count, 128 - b.ls 2f - nop -1: - stp A_l, A_h, [dstend, -16] - ldp A_l, A_h, [srcend, -16] - stp B_l, B_h, [dstend, -32] - ldp B_l, B_h, [srcend, -32] - stp C_l, C_h, [dstend, -48] - ldp C_l, C_h, [srcend, -48] - stp D_l, D_h, [dstend, -64]! - ldp D_l, D_h, [srcend, -64]! - subs count, count, 64 - b.hi 1b - - /* Write the last full set of 64 bytes. The remainder is at most 64 - bytes, so it is safe to always copy 64 bytes from the start even if - there is just 1 byte left. */ -2: - ldp E_l, E_h, [src, 48] - stp A_l, A_h, [dstend, -16] - ldp A_l, A_h, [src, 32] - stp B_l, B_h, [dstend, -32] - ldp B_l, B_h, [src, 16] - stp C_l, C_h, [dstend, -48] - ldp C_l, C_h, [src] - stp D_l, D_h, [dstend, -64] - stp E_l, E_h, [dstin, 48] - stp A_l, A_h, [dstin, 32] - stp B_l, B_h, [dstin, 16] - stp C_l, C_h, [dstin] -3: ret - - .size memmove, . - memmove -#endif diff --git a/newlib/libc/machine/aarch64/memmove.c b/newlib/libc/machine/aarch64/memmove.c new file mode 100644 index 000000000..bc8255fb8 --- /dev/null +++ b/newlib/libc/machine/aarch64/memmove.c @@ -0,0 +1,31 @@ +/* Copyright (c) 2013, Linaro Limited + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the Linaro nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ + +#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED)) +# include "../../string/memmove.c" +#else +/* See memcpy.S */ +#endif -- cgit v1.2.3